Some talk lately about rigging webbing off an anchor when it goes over a sharp edge. Best practice? In A, we see a loop of webbing around the anchor, over the edge with a knot. Two strands cross the edge, more robust than one, but there is no redundancy in the system. If one piece cuts over the edge, the anchor fails. In B. we have much the same thing, but with the knot moved above the sharp edge. If one strand of webbing cuts, then the anchor fails. No redundancy. In C. we have one knot above and one knot below the edge, and now we have redundancy. For this illustration, I show one of the strands between the knots being slack - so we have a utilized strand, perhaps sacrificial, and a backup strand, rather than equalized strands that would share the load. In D. we can see the same redundancy crossing the sharp edge, with a single strand of webbing going back to the anchor.